[Zhongbo.com] The down-draw method is usually called the overflow down-draw method. The down-draw method is the production of ultra-thin electronic glass, which is a hot spot technology in the manufacture of ultra-thin electronic glass, and is also a bottleneck restricting the development of the domestic ultra-thin electronic glass industry. The principle of overflow down-draw method: the molten glass liquid overflows from the feeding part into the overflow channel, and then flows down the surface of the long overflow trough. The lower part of the overflow trough is a wedge body, and the glass liquid is smooth. The wedge surface flows down and then merges to form a glass ribbon at the bottom edge of the wedge. The glass ribbon is annealed to produce a high quality flat glass. The main feature of the overflow down-draw forming method is that the two outer surfaces of the glass ribbon produced by the method are not in contact with any solid or liquid except for contact with air, that is, no groove brick, brick, steering roller or tin bath. During the forming process, the inflow direction of the molten glass is parallel to the two faces of the glass ribbon formed, which facilitates the installation of temperature adjusting devices on both sides of the glass ribbon to facilitate the elimination of the unevenness of the glass sheet surface and improve the quality of the glass sheet surface. . Zhejiang Bolong International Industry&Trade CO.,LTD , https://www.bolongjackets.com